Sounds awesome! Any pics?The newer F Chassis do not always ahve the same drive train on the newer models. I think and i apologize if am wrong 2007 was the last year that they shared front axles. F350 only had a Dana 60 front end, 450's and 550's had what is called a super 60. Now that ended here top long ago as well, only 550's have the super 60. Rear axles are only shared between 450 and 550 and that is current. 350 Chassis do not have the huge 450 and 550 dana in back. I went thru this jsut recently. I purchased a long milage 06 F550 4x4 200" frame crew cab deisel w auto. I spent alot of time searching out a low mileage, late model w/ 6.0. wanted to stay away form early 6.0's, not sure if the new 6.4 is any good yet. i finally found a gov fleet cable truck w/ a service body flat bed combo this spring. I have been building it/rebuilding it to make it more civilized and adding comforts too it. I pulled the service body and got quite a bit for it, i have new michelin 44' mpts, hemmt rims, a sleeper cab and i am just finishing a custom 10' box w/ custom fiberglass bedsides flared enough to fit the MPT's without lifting truck( jsut leveled it). it rides rough, but as soon as i get it fulled outfitted i am haveing the rear spring pack swithced for something a little less jarring. i am also installing a Knap Kap with full rear doors and side full side doors and then possibly a flip pack for the roof. Nice thing is if i absolutely have too i can pull the Knap Kap and still have a full box and still have a sleeper attached to the cab on the first two feet of the box.